Fossil evidence has been used to understand the movement of continental plates. the figure below shows where fossils of mesosaurus, a freshwater reptile, have been found. evaluate the figure and compare mesosaurus with other species. from the information given, which of the following is a possible explanation for why mesosaurus is found in a smaller area than other species and why?

a.) mesosaurus migration may have been greatly slowed when it was forced to share its range and compete with lystrosaurus.
b.) mesosaurus may have been unable to spread easily across land because it may have been better-adapted to the water.
c.) mesosaurus was able to swim from one continent to another even after they had moved apart because it was an aquatic reptile.
d.) mesosaurus lived for a shorter time than any of the other species, giving it less time to spread over large distances.

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia

Over the past 60 years, many amphibian species have experienced significant population declines and some species have become extinct. scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. however, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. these global declines suggest widespread problems including increased ultraviolet radiation, acid rain, and disease. in switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction. chytridiomycosis is a fungal disease first identified in 1998 as a cause of massive amphibian deaths. in some severely impacted populations, a few individuals have survived, perhaps because of some natural resistance. if these resistant individuals continue to survive and prosper, new resistant populations might emerge. this would be an example of the founder effect artificial selection genetic drift natural selection sexual selection

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.